Abstract: A modular wall panel assembly having a concealed prewired electrical system associated therewith comprising a multiwire powerway defining at least one, and preferably multiple power circuits, with the powerway coupled to at least one power protector disposed in interiorly in the wall panel member and providing power protection to a power circuit thereof, wherein the power protector comprises power surge protector (USP) and/or uninterruptable power supply (UPS). A multiwire multicircuit powerway is described comprising at least two power circuits having associated therewith power circuit receptacle terminals constructed so as to allow a compatible receptacle element to be selectively positioned on the powerway in power delivery relationship with any selected one of the multiple power circuits.

Abstract: There is disclosed a compact telephone instrument with a telescoping operation. A first housing has a conventional telephone receiver located within a hollow recess thereof. The housing is removably secured to a bottom housing which contains a dialer assembly. A series of guide mechanisms are formed in both housings and are used to accommodate a third housing containing a telephone transmitter. The third housing is slidably mounted within the receiver and dialer housings to enable on-hook and off-hook operations by sliding and extending outwardly for off-hook operation and by pushing the housing inward for on-hook operation. The transmitter housing is accurately guided between the receiver and dialer housings by means of the guide mechanisms to insure accurate and reliable operation relatively independent of the nature of the force exerted by a user on the transmitter housing when operating the instrument.

Abstract: The unit includes a flexible filter contained in a casing and an actuating arrangement for the filter to position the filter in front of the flash lamp in an operative or first position thereof and to retract the filter from in front of the flash lamp in an inoperative or second position thereof.